For example, the general term formula of 6 10 14 18 22 26 and the general term formula of 1 49 16 25 36

An=4n+2 An=n^2

RELATED INFORMATIONS

1. 6, 9, 13, 18. The general formula of this sequence
2. Write a general term formula of the sequence so that the first four terms are 1,4,10,22... (write the verification process)
3. The general formula of 2,6,10,14,18,22,26,30 RT
4. Seeking sequence: 0,6, - 6,18, - 30,66 General term formula
5. 21 / 32,1,25 / 24,17 / 18,43 / 54, () sequence reasoning
6. Please fill in the n-th number in the brackets: 1, 3, 6, 10, 15, () 10,20,40,80,（） 1,-2,3,-4,5,-6（）
7. Find the law 1 / 2 - (3 / 10), 5 / 26 - (7 / 50),. Find the 10th number
8. Fill in the number 2 10 4 15 6 20 8 () thank you
9. -2, - 8,4, - 20,28, - 68... Find the rules,
10. 1 / 3, - 2 / 15, 3 / 35, - 4 / 63
11. The first n terms and Sn = - n Λ 2 + 9N + 2 (n belongs to n *) of sequence an are known Judge whether it is arithmetic sequence or not
12. Given that the arithmetic sequence {an} satisfies an + 1 = an & # 178; - Nan + 1, then an=______ .
13. Sequence (15 22:41:41) In the known sequence an, A1 = &# 160; - 1, a (n + 1) * an = a (n + 1) - an, it is proved that the sequence 1 / an is an arithmetic sequence, and the general term formula of an is obtained
14. Mathematical sequence problems in grade one of senior high school In the sequence an BN, A1 = B1 = 1, an + 1 = an / 2An + 1, BN + 1-bn = 1 / an, Sn = 1 / B1 + 1 / B2 + 1 / B3 +. + 1 / BN 1. Find BN 2. It is proved that SN is less than nine fourths
15. Sequence (10 18:35:56) Let the sequence {an} satisfy A1 = 9, an + 1 = - 1 / 2An + 3, find the general term formula of an (including process)
16. 1. In the arithmetic sequence {an}, the fourth term is 10 and the eighth term is 22, find its tenth term 2. The third and fourth terms of an equal ratio sequence are 12 and 18 respectively. Find the first and second terms of it
17. The first term of an arithmetic sequence is 1.2, and the eighth term is 9.6. Find its tenth term
18. One is that the second term of the arithmetic sequence is 2.8, and the third term is 3.1. Find the 15th term of the arithmetic sequence
19. Known arithmetic sequence 1,8,15,22 Finding the sum of A6 and A8
20. Why don't the stars fall